more various refactors to memory interface
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ae99574b6d
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09ffe87360
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@ -17,20 +17,23 @@ u8* g_base = NULL; ///< The base pointer to the aut
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MemArena g_arena; ///< The MemArena class
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u8* g_bootrom = NULL; ///< Bootrom physical memory
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u8* g_fcram = NULL; ///< Main memory (FCRAM) pointer
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u8* g_heap_gsp = NULL;
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u8* g_heap = NULL;
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u8* g_vram = NULL; ///< Video memory (VRAM) pointer
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u8* g_physical_bootrom = NULL; ///< Bootrom physical memory
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u8* g_uncached_bootrom = NULL;
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u8* g_physical_fcram = NULL; ///< Main physical memory (FCRAM)
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u8* g_physical_heap_gsp = NULL;
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u8* g_physical_vram = NULL; ///< Video physical memory (VRAM)
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u8* g_physical_scratchpad = NULL; ///< Scratchpad memory used for main thread stack
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// We don't declare the IO region in here since its handled by other means.
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static MemoryView g_views[] = {
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{ &g_vram, &g_physical_vram, MEM_VRAM_VADDR, MEM_VRAM_SIZE, 0 },
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{ &g_fcram, &g_physical_fcram, MEM_FCRAM_VADDR, MEM_FCRAM_SIZE, MV_IS_PRIMARY_RAM },
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{&g_vram, &g_physical_vram, VRAM_VADDR, VRAM_SIZE, 0},
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{&g_heap_gsp, &g_physical_heap_gsp, HEAP_GSP_VADDR, HEAP_GSP_SIZE, 0},
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{&g_heap, &g_physical_fcram, HEAP_VADDR, HEAP_SIZE, MV_IS_PRIMARY_RAM},
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};
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/*static MemoryView views[] =
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@ -54,12 +57,12 @@ void Init() {
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for (size_t i = 0; i < ARRAY_SIZE(g_views); i++) {
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if (g_views[i].flags & MV_IS_PRIMARY_RAM)
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g_views[i].size = MEM_FCRAM_SIZE;
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g_views[i].size = FCRAM_SIZE;
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}
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g_base = MemoryMap_Setup(g_views, kNumMemViews, flags, &g_arena);
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NOTICE_LOG(MEMMAP, "initialized OK, RAM at %p (mirror at 0 @ %p)", g_fcram,
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NOTICE_LOG(MEMMAP, "initialized OK, RAM at %p (mirror at 0 @ %p)", g_heap,
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g_physical_fcram);
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}
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@ -12,25 +12,38 @@
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////////////////////////////////////////////////////////////////////////////////////////////////////
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enum {
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MEM_BOOTROM_SIZE = 0x00010000, ///< Bootrom (super secret code/data @ 0x8000) size
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MEM_MPCORE_PRIV_SIZE = 0x00002000, ///< MPCore private memory region size
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MEM_VRAM_SIZE = 0x00600000, ///< VRAM size
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MEM_DSP_SIZE = 0x00080000, ///< DSP memory size
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MEM_AXI_WRAM_SIZE = 0x00080000, ///< AXI WRAM size
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MEM_FCRAM_SIZE = 0x08000000, ///< FCRAM size
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MEM_SCRATCHPAD_SIZE = 0x00004000, ///< Typical stack size - TODO: Read from exheader
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BOOTROM_SIZE = 0x00010000, ///< Bootrom (super secret code/data @ 0x8000) size
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MPCORE_PRIV_SIZE = 0x00002000, ///< MPCore private memory region size
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VRAM_SIZE = 0x00600000, ///< VRAM size
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DSP_SIZE = 0x00080000, ///< DSP memory size
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AXI_WRAM_SIZE = 0x00080000, ///< AXI WRAM size
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FCRAM_SIZE = 0x08000000, ///< FCRAM size
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SCRATCHPAD_SIZE = 0x00004000, ///< Typical stack size - TODO: Read from exheader
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HEAP_GSP_SIZE = 0x02000000, ///< GSP heap size... TODO: Define correctly?
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HEAP_SIZE = FCRAM_SIZE, ///< Application heap size
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MEM_VRAM_MASK = 0x007FFFFF,
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MEM_FCRAM_MASK = (MEM_FCRAM_SIZE - 1), ///< FCRAM mask
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MEM_SCRATCHPAD_MASK = (MEM_SCRATCHPAD_SIZE - 1), ///< Scratchpad memory mask
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HEAP_PADDR = HEAP_GSP_SIZE,
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HEAP_PADDR_END = (HEAP_PADDR + HEAP_SIZE),
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HEAP_VADDR = 0x08000000,
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HEAP_VADDR_END = (HEAP_VADDR + HEAP_SIZE),
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HEAP_GSP_VADDR = 0x14000000,
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HEAP_GSP_VADDR_END = (HEAP_GSP_VADDR + HEAP_GSP_SIZE),
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HEAP_GSP_PADDR = 0x00000000,
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HEAP_GSP_PADDR_END = (HEAP_GSP_PADDR + HEAP_GSP_SIZE),
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MEM_FCRAM_PADDR = 0x20000000, ///< FCRAM physical address
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MEM_FCRAM_PADDR_END = (MEM_FCRAM_PADDR + MEM_FCRAM_SIZE), ///< FCRAM end of physical space
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MEM_FCRAM_VADDR = 0x08000000, ///< FCRAM virtual address
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MEM_FCRAM_VADDR_END = (MEM_FCRAM_VADDR + MEM_FCRAM_SIZE), ///< FCRAM end of virtual space
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VRAM_MASK = 0x007FFFFF,
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FCRAM_MASK = (FCRAM_SIZE - 1), ///< FCRAM mask
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SCRATCHPAD_MASK = (SCRATCHPAD_SIZE - 1), ///< Scratchpad memory mask
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HEAP_MASK = (HEAP_SIZE - 1),
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MEM_VRAM_VADDR = 0x1F000000,
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MEM_SCRATCHPAD_VADDR = (0x10000000 - MEM_SCRATCHPAD_SIZE), ///< Scratchpad virtual address
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FCRAM_PADDR = 0x20000000, ///< FCRAM physical address
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FCRAM_PADDR_END = (FCRAM_PADDR + FCRAM_SIZE), ///< FCRAM end of physical space
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FCRAM_VADDR = 0x08000000, ///< FCRAM virtual address
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FCRAM_VADDR_END = (FCRAM_VADDR + FCRAM_SIZE), ///< FCRAM end of virtual space
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VRAM_VADDR = 0x1F000000,
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SCRATCHPAD_VADDR_END = 0x10000000,
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SCRATCHPAD_VADDR = (SCRATCHPAD_VADDR_END - SCRATCHPAD_SIZE), ///< Stack space
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};
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////////////////////////////////////////////////////////////////////////////////////////////////////
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@ -49,7 +62,7 @@ extern u8 *g_base;
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// These are guaranteed to point to "low memory" addresses (sub-32-bit).
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// 64-bit: Pointers to low-mem (sub-0x10000000) mirror
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// 32-bit: Same as the corresponding physical/virtual pointers.
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extern u8* g_fcram; ///< Main memory
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extern u8* g_heap; ///< Main memory
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extern u8* g_vram; ///< Video memory (VRAM)
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void Init();
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@ -15,8 +15,8 @@ u32 _AddressPhysicalToVirtual(const u32 addr) {
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// Our memory interface read/write functions assume virtual addresses. Put any physical address
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// to virtual address translations here. This is obviously quite hacky... But we're not doing
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// any MMU emulation yet or anything
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if (((addr & 0xF0000000) == MEM_FCRAM_PADDR) && (addr < (MEM_FCRAM_PADDR_END))) {
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return (addr & MEM_FCRAM_MASK) | MEM_FCRAM_VADDR;
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if ((addr >= FCRAM_PADDR) && (addr < (FCRAM_PADDR_END))) {
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return (addr & FCRAM_MASK) | FCRAM_VADDR;
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}
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return addr;
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}
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@ -40,15 +40,15 @@ inline void _Read(T &var, const u32 addr) {
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} else if ((vaddr & 0xFF000000) == 0x10000000 || (vaddr & 0xFF000000) == 0x1E000000) {
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HW::Read<T>(var, vaddr);
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// FCRAM
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} else if ((vaddr > MEM_FCRAM_VADDR) && (vaddr < MEM_FCRAM_VADDR_END)) {
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var = *((const T*)&g_fcram[vaddr & MEM_FCRAM_MASK]);
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// FCRAM - application heap
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} else if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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var = *((const T*)&g_heap[vaddr & HEAP_MASK]);
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/*else if ((vaddr & 0x3F800000) == 0x04000000) {
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var = *((const T*)&m_pVRAM[vaddr & VRAM_MASK]);*/
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} else {
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_assert_msg_(MEMMAP, false, "unknown Read%d @ 0x%08X", sizeof(var) * 8, vaddr);
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//_assert_msg_(MEMMAP, false, "unknown Read%d @ 0x%08X", sizeof(var) * 8, vaddr);
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}
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}
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@ -67,19 +67,13 @@ inline void _Write(u32 addr, const T data) {
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} else if ((vaddr & 0xFF000000) == 0x10000000 || (vaddr & 0xFF000000) == 0x1E000000) {
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HW::Write<T>(vaddr, data);
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// ExeFS:/.code is loaded here:
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} else if ((vaddr & 0xFFF00000) == 0x00100000) {
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// TODO(ShizZy): This is dumb... handle correctly. From 3DBrew:
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// http://3dbrew.org/wiki/Memory_layout#ARM11_User-land_memory_regions
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// The ExeFS:/.code is loaded here, executables must be loaded to the 0x00100000 region when
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// the exheader "special memory" flag is clear. The 0x03F00000-byte size restriction only
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// applies when this flag is clear. Executables are usually loaded to 0x14000000 when the
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// exheader "special memory" flag is set, however this address can be arbitrary.
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*(T*)&g_fcram[vaddr & MEM_FCRAM_MASK] = data;
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// FCRAM - GSP heap
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//} else if ((vaddr > HEAP_GSP_VADDR) && (vaddr < HEAP_VADDR_GSP_END)) {
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// *(T*)&g_heap_gsp[vaddr & FCRAM_MASK] = data;
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// FCRAM
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} else if ((vaddr > MEM_FCRAM_VADDR) && (vaddr < MEM_FCRAM_VADDR_END)) {
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*(T*)&g_fcram[vaddr & MEM_FCRAM_MASK] = data;
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// FCRAM - application heap
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} else if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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*(T*)&g_heap[vaddr & HEAP_MASK] = data;
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} else if ((vaddr & 0xFF000000) == 0x14000000) {
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_assert_msg_(MEMMAP, false, "umimplemented write to GSP heap");
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@ -104,9 +98,9 @@ inline void _Write(u32 addr, const T data) {
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u8 *GetPointer(const u32 addr) {
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const u32 vaddr = _AddressPhysicalToVirtual(addr);
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// FCRAM
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if ((vaddr > MEM_FCRAM_VADDR) && (vaddr < MEM_FCRAM_VADDR_END)) {
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return g_fcram + (vaddr & MEM_FCRAM_MASK);
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// FCRAM - application heap
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if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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return g_heap + (vaddr & HEAP_MASK);
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} else {
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ERROR_LOG(MEMMAP, "Unknown GetPointer @ 0x%08x", vaddr);
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